Pupil - Wikipedia
WEBThe pupil is a hole located in the center of the iris of the eye that allows light to strike the retina. [1] . It appears black because light rays entering the pupil are either absorbed by the tissues inside the eye directly, or absorbed after diffuse reflections within the eye that mostly miss exiting the narrow pupil. [citation needed] .
Pupil Definition & Meaning - Merriam-Webster
WEB1. : a child or young person in school or in the care of a tutor or teacher. 2. : one who has been taught or influenced by a person of fame : disciple. pupil. 2 of 2 noun. : the usually …
Pupil of the Eye: Definition, Anatomy & Function - Cleveland Clinic
WEBThe pupil of your eye is the black hole in the middle of your iris. Your iris is the colored part of your eye. Muscles in your iris control how big the pupil is. Usually, this happens as a result of how much light is available. This makes the pupil an important part of …
PUPIL | English meaning - Cambridge Dictionary
WEBAdd to word list. A2. a person, especially a child at school, who is being taught: a second-year pupil. a primary-school pupil. The school has over 400 pupils. There is a very …
Pupil - Definition and Detailed Illustration - All About Vision
WEBFeb 27, 2019 · Pupil Definition. The pupil is the opening in the center of the iris (the structure that gives our eyes their color). The function of the pupil is to allow light to enter the eye so it can be focused on the retina to begin the process of sight. Typically, the pupils appear perfectly round, equal in size and black in color.
Pupil: anatomy, structure and function | Kenhub
WEBOct 30, 2023 · The pupil is the small black circle located in the center of the eyeball. Surrounding the pupil is the colored part of the eye, the iris. The pupil’s function is to allow light to pass through and enter the eye. This light then interacts with the cells of the retina, working as part of the visual pathway to provide the ability of sight.
The Purpose of Pupils in Our Eyes - Verywell Health
WEBUpdated on November 08, 2023. Medically reviewed by Christine L. Larsen, MD. Fact checked by Jennifer Klump. Print. The pupil is the opening located in the center of the iris of the eye. It controls the amount of light that enters the eye. Pupil size is controlled by the dilator and sphincter muscles of the iris.
PUPIL Definition & Meaning | Dictionary.com
WEBPupil, disciple, scholar, student refer to a person who is the recipient of education or mentoring. A pupil is one under the close supervision of a teacher, either because of youth or of specialization in some branch of study: a grade-school pupil; the …
Pupil | Iris, Optic Nerve & Retina | Britannica
WEBApr 23, 2024 · Pupil, in the anatomy of the eye, the black centre opening within the iris through which light passes before reaching the lens and being focused onto the retina. The size of the opening is governed by the muscles of the iris, the coloured part of the eye. These muscles rapidly constrict the pupil
pupil noun - Definition, pictures, pronunciation and usage notes ...
WEBnoun. /ˈpjuːpl/ (especially British English, becoming old-fashioned) a person who is being taught, especially a child in a school. school pupils. a former/past pupil. How many pupils does the school have? She now teaches only private pupils. Spending per pupil will rise. Synonyms student. see also day pupil. Extra Examples. Topics Education b2.
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